US3779826A
Expired / Lapsed
US
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Nitrocellulose propellent compositions containing inorganic oxidizing agents with aluminum
Assignee: Atlantic Research Corp
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Filing: 1960-12-02
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Granted: 1973-12-18
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Expires: 1980-12-02
Abstract
Abstract A double-base propellant is provided having reduced pressure and temperature sensitivity and also increased burning rate by incorporating aluminum of small particle size, e.g., about 3 microns, and a solid inorganic oxidizer salt of coarse particle size, e.g., about 150 microns into the propellant.
Inventors
- 👤 R Shaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:12
CPC Classifications
C; C06; C06B; C06B45/00; C06B45/02; C06B33/00; C06B33/06; Y; Y10; Y10S; Y10S149/00; Y10S149/11; Y10S149/113; Y10S149/114
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
34 words
The propellent composition of claim 1 in which the portion of aluminum having a maximum weight average particle size of about 3 microns comprises at least about 5% by weight of the propellent composition.
Claim 2
Dependent Claim
14 words
The propellent composition of claim 1 in which the liquid organic polynitrate is nitroglycerine.
Claim 3
Dependent Claim
13 words
The propellent composition of claim 3 in which the oxidizer is ammonium perchlorate.
Claim 4
Dependent Claim
22 words
The propellent composition of claim 1 which includes in addition a minor proportion of a lead salt of an organic carboxylic acid.
Claim 5
Dependent Claim
22 words
The propellent composition of claim 2 which includes in addition a minor proportion of a lead salt of an organic carboxylic acid.
Claim 6
Dependent Claim
22 words
The propellent composition of claim 3 which includes in addition a minor proportion of a lead salt of an organic carboxylic acid.
Claim 7
Dependent Claim
22 words
The propellent composition of claim 4 which includes in addition a minor proportion of a lead salt of an organic carboxylic acid.
Claim 8
Dependent Claim
15 words
The propellent composition of claim 5 in which the organic lead salt is lead salicylate.
Claim 9
Dependent Claim
15 words
The propellent composition of claim 6 in which the organic lead salt is lead salicylate.
Claim 10
Dependent Claim
15 words
The propellent composition of claim 7 in which the organic lead salt is lead salicylate.
Claim 11
Dependent Claim
15 words
The propellent composition of claim 8 in which the organic lead salt is lead salicylate.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |